public class testDemo {
    public static void main(String[] args) {
        SingleLinkedList mySingleLinkedList = new SingleLinkedList();
        mySingleLinkedList.addIndex(0,26);
        mySingleLinkedList.addFirst(12);
        mySingleLinkedList.addLast(45);
        mySingleLinkedList.addLast(12);
        mySingleLinkedList.addLast(12);
        mySingleLinkedList.removeAllKey(12);
        mySingleLinkedList.display();
    }
}
